The symbol "&" represents the word "and," which is used to connect words, phrases, or clauses in a sentence. It indicates that two or more elements are being combined or considered together. For example, in the phrase "apples & oranges," the "&" shows that both fruits are included. In writing, the ampersand is often used in titles, company names, and lists for brevity. It can also add a stylistic touch to text. However, in formal writing, it is generally recommended to use the word "and" instead of the symbol to maintain clarity and professionalism.